- Time limit: 1.00 s
- Memory limit: 512 MB
The algorithm consists of one or more rounds. On each round, the algorithm goes through the array from left to right and sorts each subarray of size $k$. The algorithm terminates when the array does not change during a round. Note that if $k=2$, the algorithm works like the standard bubble sort algorithm.
Your task is to study the efficiency of Jonnesort. How many rounds does the algorithm need to sort an array?
The first input line contains two integers $n$ and $k$: the size of the array and the parameter $k$.
The second line contains $n$ integers $a_1,a_2,\ldots,a_n$: the contents of the array.
Print the number of rounds needed to sort the array.
- $2 \le k \le n \le 1000$
- $1 \le a_i \le 10^9$
2 3 4 5 1